Spatial changes in the vertical distribution of calanoid copepods down to great depths in the North Pacific
Abstract Background Despite its ecological importance, little information is available regarding the spatial and vertical changes in the calanoid copepod community over large geographical regions. This study investigated the spatial and vertical patterns in calanoid copepod abundance and community s...
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ftbiomed:oai:biomedcentral.com:s40555-014-0091-6 2023-05-15T18:28:03+02:00 Spatial changes in the vertical distribution of calanoid copepods down to great depths in the North Pacific Yamaguchi, Atsushi Matsuno, Kohei Homma, Tomoe 2015-01-14 http://www.zoologicalstudies.com/content/54/1/13 en eng BioMed Central Ltd. http://www.zoologicalstudies.com/content/54/1/13 Copyright 2015 Yamaguchi et al.; licensee Springer. Zooplankton Calanoid copepods Community structure Diversity Deep-sea North Pacific Research 2015 ftbiomed 2015-01-25T00:50:23Z Abstract Background Despite its ecological importance, little information is available regarding the spatial and vertical changes in the calanoid copepod community over large geographical regions. This study investigated the spatial and vertical patterns in calanoid copepod abundance and community structure using zooplankton samples collected between depths of 0 and 2,615 m across the North Pacific from 0° to 56°N. Results A total of 211 calanoid copepod species belonging to 66 genera and 24 families were identified. Calanoid copepod abundance decreased with increasing depth, and few latitudinal differences were detected. Across the entire region, species diversity peaked near 500 to 2,000 m in depth. The calanoid copepod community was separated into seven groups with distinct spatial and vertical distributions. For all groups, the number of species was low (28 to 37 species) in the subarctic region (north of 40°N) and high (116 to 121 species) in the subtropical-tropical region. The deepest group in the subtropical-tropical region was composed of cosmopolitan species, and this group was also observed in deep water in the subarctic region. Conclusions In deep water, most of the calanoid copepod community consisted of cosmopolitan species, while an endemic community was observed in the subarctic region. Because the food of deep-sea calanoid copepods originates from the surface layer, sufficient and excess flux in the eutrophic subarctic region may be responsible for maintaining the endemic species in the region. Other/Unknown Material Subarctic Copepods BioMed Central Pacific |
institution |
Open Polar |
collection |
BioMed Central |
op_collection_id |
ftbiomed |
language |
English |
topic |
Zooplankton Calanoid copepods Community structure Diversity Deep-sea North Pacific |
spellingShingle |
Zooplankton Calanoid copepods Community structure Diversity Deep-sea North Pacific Yamaguchi, Atsushi Matsuno, Kohei Homma, Tomoe Spatial changes in the vertical distribution of calanoid copepods down to great depths in the North Pacific |
topic_facet |
Zooplankton Calanoid copepods Community structure Diversity Deep-sea North Pacific |
description |
Abstract Background Despite its ecological importance, little information is available regarding the spatial and vertical changes in the calanoid copepod community over large geographical regions. This study investigated the spatial and vertical patterns in calanoid copepod abundance and community structure using zooplankton samples collected between depths of 0 and 2,615 m across the North Pacific from 0° to 56°N. Results A total of 211 calanoid copepod species belonging to 66 genera and 24 families were identified. Calanoid copepod abundance decreased with increasing depth, and few latitudinal differences were detected. Across the entire region, species diversity peaked near 500 to 2,000 m in depth. The calanoid copepod community was separated into seven groups with distinct spatial and vertical distributions. For all groups, the number of species was low (28 to 37 species) in the subarctic region (north of 40°N) and high (116 to 121 species) in the subtropical-tropical region. The deepest group in the subtropical-tropical region was composed of cosmopolitan species, and this group was also observed in deep water in the subarctic region. Conclusions In deep water, most of the calanoid copepod community consisted of cosmopolitan species, while an endemic community was observed in the subarctic region. Because the food of deep-sea calanoid copepods originates from the surface layer, sufficient and excess flux in the eutrophic subarctic region may be responsible for maintaining the endemic species in the region. |
format |
Other/Unknown Material |
author |
Yamaguchi, Atsushi Matsuno, Kohei Homma, Tomoe |
author_facet |
Yamaguchi, Atsushi Matsuno, Kohei Homma, Tomoe |
author_sort |
Yamaguchi, Atsushi |
title |
Spatial changes in the vertical distribution of calanoid copepods down to great depths in the North Pacific |
title_short |
Spatial changes in the vertical distribution of calanoid copepods down to great depths in the North Pacific |
title_full |
Spatial changes in the vertical distribution of calanoid copepods down to great depths in the North Pacific |
title_fullStr |
Spatial changes in the vertical distribution of calanoid copepods down to great depths in the North Pacific |
title_full_unstemmed |
Spatial changes in the vertical distribution of calanoid copepods down to great depths in the North Pacific |
title_sort |
spatial changes in the vertical distribution of calanoid copepods down to great depths in the north pacific |
publisher |
BioMed Central Ltd. |
publishDate |
2015 |
url |
http://www.zoologicalstudies.com/content/54/1/13 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic Copepods |
genre_facet |
Subarctic Copepods |
op_relation |
http://www.zoologicalstudies.com/content/54/1/13 |
op_rights |
Copyright 2015 Yamaguchi et al.; licensee Springer. |
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1766210387485655040 |